# The M4 Motorway (Heathrow Airport Spur) (Speed Limit) Regulations 1994, Regulation 3


No person shall drive a motor vehicle at a speed exceeding 50 miles per hour on any of the lengths of motorway specified in the Schedule to these Regulations.

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Source: https://www.legislation.gov.uk/uksi/1994/2129/regulation/3 (the official version)
Page: https://openlegislation.uk/m4-motorway-heathrow-airport-spur-speed-limit-regulations-1994/regulation-3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.